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Seasonality in regression : economic theory and econometric practice
Gersovitz, Mark, (1977)
Testing for specification of econometric models in regression and non-regression directions
Davidson, Russell, (1986)
Understanding spurious regressions in econometrics
Phillips, P. C. B., (1986)
Teollisuustuotannon volyymin ennustaminen suhdannebarometrin avulla
Teräsvirta, Timo, (1985)
Smooth transition models
Teräsvirta, Timo, (1996)
Modelling economic relationships with smooth transition regressions